Modified Steel Bar Model Incorporating Bond-Slip for Seismic Assessment of Concrete Structures
Publication: Journal of Structural Engineering
Volume 138, Issue 11
Abstract
This paper presents a simplified model for describing the response of a longitudinal bar embedded in concrete, taking into account the bond-slip phenomenon. The model is developed by assuming a linear bond-slip field along the bar anchorage length and provides a simplified stress-strain relationship to assign to the longitudinal reinforcement. The analytical approach adopted makes the proposed model very convenient from a computational standpoint because, unlike many other refined models, it does not require a multilevel iterative process. Moreover, the assumptions made are particularly appropriate for modeling bond-slip of smooth bars generally used in older reinforced concrete buildings. The implementation strategy of the proposed bond-slip model in general-purpose nonlinear structural analysis software and comparisons with experimental results are discussed in a companion paper.
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Information
Published In
Journal of Structural Engineering
Volume 138 • Issue 11 • November 2012
Pages: 1342 - 1350
Copyright
© 2012 American Society of Civil Engineers.
History
Received: Jun 15, 2011
Accepted: Feb 17, 2012
Published online: Feb 22, 2012
Published in print: Nov 1, 2012
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